A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 2925-01-424-0235
NSN 6110-00-800-9978
NSN 5905-01-086-0066
NSN 6685-00-246-1178
NSN 6110-01-053-9432
NSN 6150-01-209-9038
NSN 5999-00-807-8104
NSN 5925-00-222-6199
NSN 5935-01-418-9678
NSN 5910-01-222-2239
NSN 5960-01-236-9139
NSN 5925-01-024-9568